Implement Memory Crystal (EXO)

Mage.Sets/src/mage/cards/m/MemoryCrystal.java

@@ -0,0 +1,104 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.cards.m;
+
+import java.util.UUID;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.BuybackCondition;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.CostModificationType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.util.CardUtil;
+
+/**
+ *
+ * @author spjspj
+ */
+public class MemoryCrystal extends CardImpl {
+
+    public MemoryCrystal(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT}, "{3}");
+
+        // Buyback costs cost {2} less.
+        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new MemoryCrystalSpellsCostReductionEffect()));
+    }
+
+    public MemoryCrystal(final MemoryCrystal card) {
+        super(card);
+    }
+
+    @Override
+    public MemoryCrystal copy() {
+        return new MemoryCrystal(this);
+    }
+}
+
+class MemoryCrystalSpellsCostReductionEffect extends CostModificationEffectImpl {
+
+    public MemoryCrystalSpellsCostReductionEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit, CostModificationType.REDUCE_COST);
+        this.staticText = "Buyback costs cost {2} less.";
+    }
+
+    protected MemoryCrystalSpellsCostReductionEffect(final MemoryCrystalSpellsCostReductionEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        CardUtil.reduceCost(abilityToModify, 2);
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        if (abilityToModify instanceof SpellAbility) {
+            if (abilityToModify.getControllerId().equals(source.getControllerId())) {
+                Spell spell = (Spell) game.getStack().getStackObject(abilityToModify.getId());
+                if (spell != null) {
+                    return BuybackCondition.instance.apply(game, abilityToModify);
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public MemoryCrystalSpellsCostReductionEffect copy() {
+        return new MemoryCrystalSpellsCostReductionEffect(this);
+    }
+}

Mage.Sets/src/mage/sets/Exodus.java

@@ -98,6 +98,7 @@ public class Exodus extends ExpansionSet {
         cards.add(new SetCardInfo("Mana Breach", 38, Rarity.UNCOMMON, mage.cards.m.ManaBreach.class));
         cards.add(new SetCardInfo("Maniacal Rage", 87, Rarity.COMMON, mage.cards.m.ManiacalRage.class));
         cards.add(new SetCardInfo("Medicine Bag", 133, Rarity.UNCOMMON, mage.cards.m.MedicineBag.class));
+        cards.add(new SetCardInfo("Memory Crystal", 134, Rarity.RARE, mage.cards.m.MemoryCrystal.class));
         cards.add(new SetCardInfo("Merfolk Looter", 39, Rarity.COMMON, mage.cards.m.MerfolkLooter.class));
         cards.add(new SetCardInfo("Mindless Automaton", 135, Rarity.RARE, mage.cards.m.MindlessAutomaton.class));
         cards.add(new SetCardInfo("Mind Over Matter", 40, Rarity.RARE, mage.cards.m.MindOverMatter.class));

Mage/src/main/java/mage/abilities/condition/common/BuybackCondition.java

@@ -0,0 +1,53 @@
+/*
+ *  Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without modification, are
+ *  permitted provided that the following conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
+ *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ *  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  The views and conclusions contained in the software and documentation are those of the
+ *  authors and should not be interpreted as representing official policies, either expressed
+ *  or implied, of BetaSteward_at_googlemail.com.
+ */
+package mage.abilities.condition.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.abilities.keyword.BuybackAbility;
+import mage.cards.Card;
+import mage.game.Game;
+
+/**
+ * @author spjspj
+ */
+public enum BuybackCondition implements Condition {
+
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Card card = game.getCard(source.getSourceId());
+        if (card != null) {
+            return card.getAbilities().stream()
+                    .filter(a -> a instanceof BuybackAbility)
+                    .anyMatch(b -> ((BuybackAbility) b).isActivated());
+        }
+        return false;
+    }
+}